On 30 March 2011, the Supreme Court gave its judgment in Jones –v- Kaney[2011] UKSC 13, the case which saw an end to the expert witness’s immunity from suit in negligence. This reversed a line of authority dating back 400 years, and commentators have called it a landmark ruling, a historic decision, a major victory for claimant lawyers, the end of the amateur expert, and the professionalising of the expert witness industry. How valid are these comments?